Why is rustup 1.26 the newest available version of rustup?

due to some unfortunate circumstances I have been forced to use google’s IDX IDE for my rust projects, but I was shocked that there’s no way for me to install a current version of rustup to actually use current packages.

1.26 was released in early 2023, why is that the newest version of rustup available on the current stable build? Surely there’s a good reason.

PR with 1.27.1 was merged into master a few days ago:

So it’s just a matter of waiting until it gets to unstable.
Otherwise, rustup may not be the best way to do things with nix (not sure it even works properly ootb).

This.

Here’s an example Rust project with Nix.